Home / 838,671.75-1,157,415.60-631,569.39

Finding the Fourth Proportional to 838,671.75, 1,157,415.60 and 631,569.39

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Solution

The fourth proportional to 838,671.75, 1,157,415.60 and 631,569.39 is: 871,602.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,671.75 : 1,157,415.60 = 631,569.39 : x
  2. Step 2: Convert to fraction form
    838,671.75/1,157,415.60 = 631,569.39/x
  3. Step 3: Cross multiply
    838,671.75x = 1,157,415.60 × 631,569.39
  4. Step 4: Simplify right side
    838,671.75x = 730,988,264,468.48
  5. Step 5: Solve for x
    x = 730,988,264,468.48/838,671.75
  6. Step 6: Final answer
    x = 871,602.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.